CN210564520U - Inner spray sealing device of cantilever type tunneling machine - Google Patents
Inner spray sealing device of cantilever type tunneling machine Download PDFInfo
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- CN210564520U CN210564520U CN201921602267.2U CN201921602267U CN210564520U CN 210564520 U CN210564520 U CN 210564520U CN 201921602267 U CN201921602267 U CN 201921602267U CN 210564520 U CN210564520 U CN 210564520U
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Abstract
The utility model discloses an interior spraying sealing device of cantilever type entry driving machine, including seal bush and seal housing to and rotatory water-stop seal subassembly and radial water course, be provided with a plurality of seal ring between seal bush and the cutting main shaft, seal housing includes first seal housing section and second seal housing section, rotatory water-stop seal subassembly includes two rotatory water-stops of suit on seal bush and is located the water conservancy diversion ring between two rotatory water-stops, the flute profile water course has been seted up on the water conservancy diversion ring, two water conservancy diversion holes have been seted up on the radial direction of flute profile water course, two water conservancy diversion holes all communicate with radial water course. The utility model discloses a water conservancy diversion ring can be with entering into the leading-in radial water course of the inside interior spraying water under high pressure of seal housing, and two rotatory water-stop can prevent that the interior spraying water under high pressure in the flute profile water course from getting into the lubricated intracavity of bearing, can avoid forming the phenomenon that water and oil mixed in the lubricated intracavity of bearing, have improved bearing and this interior spray seal device's life.
Description
Technical Field
The utility model belongs to the technical field of the cantilever type entry driving machine, concretely relates to inner spray sealing device of cantilever type entry driving machine.
Background
The spraying system in the cantilever type tunneling machine mainly has the following functions: firstly, dust generated in the tunneling process of the tunneling machine is reduced, and the damage of the dust to the body of underground workers is reduced; secondly, cooling the cutting teeth to reduce the loss of the cutting teeth; thirdly, the sparks generated by the work of the gun head and the coal wall are eliminated, and the gas explosion of the mine is prevented. At present, the sealing mode adopted by the inner spraying system of the cantilever type tunneling machine is a mode of combining a floating sealing seat, a floating sealing frame, a Glare ring, a floating oil seal and an O-shaped ring, and the sealing structure adopted by the inner spraying system of the cantilever type tunneling machine is mainly arranged at the front end of a cutting main shaft.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that it is not enough among the above-mentioned prior art to be directed against, provide an interior spraying sealing device of cantilever type entry driving machine, a structure is simple, and reasonable design, the water conservancy diversion ring can be with entering into the leading-in to radial water course of the inside interior spraying high pressure water of seal shell, two rotatory water-stop can prevent that the interior spraying high pressure water in the flute profile water course from getting into the lubricated intracavity of bearing, can avoid forming the phenomenon that the aqueous oil mixes in the lubricated intracavity of bearing, the lubricating property of bearing has been guaranteed, the bearing has improved bearing and this interior spraying sealing device's life.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides an interior spraying sealing device of cantilever type entry driving machine which characterized in that: the water-cooling cutting machine comprises a sealing bush fixedly sleeved on a cutting main shaft, a sealing shell rotatably connected with the sealing bush through a bearing, a rotary water-sealing assembly sleeved on the sealing bush and clamped in the sealing shell, and a radial water channel used for conveying cooling water into an axial water channel arranged in the cutting main shaft, wherein a plurality of sealing gaskets are arranged between the sealing bush and the cutting main shaft, the sealing shell comprises a first sealing shell section and a second sealing shell section fixedly connected with the first sealing shell section, the rotary water-sealing assembly comprises two rotary water seals sleeved on the sealing bush and a flow guide ring sleeved on the sealing bush and positioned between the two rotary water seals, a groove-shaped water channel is arranged on the flow guide ring, and two flow guide holes are arranged in the radial direction of the groove-shaped water channel, and the two diversion holes are communicated with the radial water channel.
The inner spray sealing device of the cantilever type tunneling machine is characterized in that: the radial water channel comprises a first section of radial water channel communicated with the first sealing shell section, a second section of radial water channel arranged on the sealing bush and a third section of radial water channel arranged on the cutting spindle, and the inlet end of the first section of radial water channel is connected with a water inlet arranged at the upper end of the cutting arm through a hose and a joint.
The inner spray sealing device of the cantilever type tunneling machine is characterized in that: the cutting spindle is fixedly connected with the sealing bush through a flat key, and a shaft retaining ring used for limiting the axial position of the flat key and the axial position of the sealing bush is sleeved on the cutting spindle.
The inner spray sealing device of the cantilever type tunneling machine is characterized in that: the outer circular surface of the sealing bush is composed of a first small-diameter shaft section, a large-diameter shaft section and a second small-diameter shaft section which are sequentially fixed end to end and are in a step shape, the diameters of the first small-diameter shaft section and the second small-diameter shaft section are the same, and a key groove and a plurality of sealing washer installation grooves are formed in the inner circular surface of the sealing bush.
The inner spray sealing device of the cantilever type tunneling machine is characterized in that: the number of the bearings is two, the two bearings are respectively sleeved on the first small-diameter shaft section and the second small-diameter shaft section, and bearing end covers are mounted on the end face of the first seal shell section and the end face of the second seal shell section.
The inner spray sealing device of the cantilever type tunneling machine is characterized in that: the first seal housing section is fixedly connected with the second seal housing section through fastening bolts which are axially arranged, the central through hole of the first seal housing section comprises a first bearing mounting hole section, a first bearing lubricating cavity hole section, a first seal bushing mounting hole section, a transition hole section and a rotary water seal assembly mounting hole section which are sequentially communicated, the central through hole of the second seal housing section comprises a second bearing mounting hole section, a second bearing lubricating cavity hole section and a second seal bushing mounting hole section which are sequentially communicated, and the first seal bushing mounting hole section and the second seal bushing mounting hole section are matched with the large-diameter shaft section.
The inner spray sealing device of the cantilever type tunneling machine is characterized in that: the lubricating device comprises a first sealing shell section, a second sealing shell section, a first lubricating grease injection channel, a second bearing lubricating cavity section and an oil nozzle, wherein the first lubricating grease injection channel is arranged in the radial direction of the first sealing shell section, the first lubricating grease injection channel is communicated with the first bearing lubricating cavity section, the second lubricating grease injection channel is communicated with the second bearing lubricating cavity section, a first water leakage hole is arranged in the radial direction of the first bearing lubricating cavity section, a second water leakage hole is arranged in the radial direction of the second bearing lubricating cavity section, and the inlet end of the first lubricating grease injection channel and the inlet end of the second lubricating grease injection channel are in threaded connection with the oil nozzle.
Compared with the prior art, the utility model has the following advantage:
1. the utility model discloses a fixed suit seal bushing on the cutting main shaft, and set up and pass through the seal housing that the bearing rotates to be connected with seal bushing, it is used for the rotatory water-stop seal subassembly of suit on seal bushing to set up in seal housing, and set up and be used for to seting up the radial water course of carrying the cooling water in the inside axial water course of cutting main shaft, in practical use, because be provided with a plurality of seal ring between seal bushing and the cutting main shaft, a plurality of seal ring can form the static seal between seal bushing and cutting main shaft, bearing and rotatory water-stop seal subassembly can form the dynamic seal between seal housing and seal bushing, adopt the mode that static seal and dynamic seal combined together, can improve sealed effect, and the facilitate promotion is used.
2. The sealing shell of the utility model adopts a split structure, which is convenient for the installation, replacement and maintenance of the rotary water sealing component, the rotary water sealing component comprises two rotary water seals and a diversion ring, the two rotary water seals and the diversion ring are both sheathed on the sealing bush, the guide ring is positioned between the two rotary water seals, and the guide ring is provided with a groove-shaped water channel, two guide holes are arranged in the radial direction of the groove-shaped water channel, the two guide holes are both communicated with the radial water channel, therefore, the guide ring can guide the inner spray high-pressure water entering the inside of the sealing shell into the radial water channel, the two rotary water seals can prevent the inner spray high-pressure water in the groove-shaped water channel from entering the lubricating cavity of the bearing, the phenomenon of mixing water and oil in the lubricating cavity of the bearing can be avoided, the lubricating performance of the bearing is ensured, and the service life of the bearing and the inner spray sealing device is prolonged.
3. The utility model discloses a seted up first hole that leaks on the radial direction of the lubricated chamber hole section of first bearing, seted up the second hole that leaks on the radial direction of the lubricated chamber hole section of second bearing, when because long-term use, under the bad or the not hard condition of maintenance of interior spraying high pressure water quality of water, when the phenomenon of bad wearing and tearing appears in this interior spraying sealing device, interior spraying high pressure water can flow through first hole and the second hole that leaks to discharge in following the cutting arm through the wash port, avoid interior spraying high pressure water to remain in the cutting arm.
4. The utility model has the advantages of simple structure and reasonable design, low in manufacturing cost, facilitate promotion is used.
To sum up, the utility model has the advantages of simple structure and reasonable design, the water conservancy diversion ring can be with entering into the leading-in to radial water course of the inside interior spraying water under high pressure of seal housing, and two rotatory water-stop can prevent that the interior spraying water under high pressure in the flute profile water course from getting into the lubricated intracavity of bearing, can avoid forming the phenomenon that the aqueous oil mixes in the lubricated intracavity of bearing, have guaranteed the lubricating property of bearing, have improved bearing and this interior spraying sealing device's life.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic view of the usage state of the present invention.
Fig. 2 is a partially enlarged view of a portion a of fig. 1.
Fig. 3 is a schematic structural view of the seal bush of the present invention.
Fig. 4 is a schematic structural diagram of the first seal housing section according to the present invention.
Fig. 5 is a schematic structural view of a second seal housing section according to the present invention.
Fig. 6 is a schematic structural view of the flow guide ring of the present invention.
Description of reference numerals:
1-cutting the main shaft; 1-axial water channel; 2-a cutting arm;
2-1-water inlet; 2-water outlet; 2-3-inspection opening;
3-1-hose; 3-2-linker; 4-sealing the bushing;
4-1-large diameter shaft section; 4-2-a first minor-diameter shaft section; 4-2-second minor diameter shaft section;
4-sealing washer mounting groove; 4-5-key groove; 5, sealing a gasket;
6-a first seal housing section; 6-1-a first bearing mounting hole section;
6-2-first bearing lubrication cavity hole section; 6-3-a first seal bushing mounting bore section;
6-4-transition hole section; 6-5, rotating the water sealing component mounting hole section;
6-first grease injection channel; 6-7-a first water leakage hole;
7-a second seal housing section; 7-1-second bearing mounting hole section;
7-2-second bearing lubrication cavity hole section; 7-3-second seal bushing mounting hole section;
7-4-second grease injection channel; 7-5-a second water leakage hole;
7-6-clamping ring; 8, fastening bolts; 9-a flow guide ring;
9-1-ring groove; 9-2-diversion holes; 10, rotating and sealing water;
11-a gasket; 12-a bearing; 13-bearing end cap;
14-a flat bond; 15-a retainer ring for a shaft; 16-1 — a first segment of radial waterways;
16-2-a second section of radial water channel; 16-3-a third segment of radial water channel;
17-oil nozzle; and 18, covering the plate.
Detailed Description
As shown in fig. 1, fig. 2 and fig. 6, the utility model comprises a sealing bush 4 fixed on a cutting spindle 1, a sealing housing rotatably connected with the sealing bush 4 through a bearing 12, a rotary water seal assembly sleeved on the sealing bush 4 and clamped in the sealing housing, and a radial water channel for conveying cooling water to an axial water channel 1-1 arranged inside the cutting spindle 1, wherein a plurality of sealing washers 5 are arranged between the sealing bush 4 and the cutting spindle 1, the sealing housing comprises a first sealing housing section 6 and a second sealing housing section 7 fixedly connected with the first sealing housing section 6, the rotary water seal assembly comprises two rotary water seals 10 sleeved on the sealing bush 4 and a diversion ring 9 sleeved on the sealing bush 4 and positioned between the two rotary water seals 10, the guide ring 9 is provided with a groove-shaped water channel 9-1, two guide holes 9-2 are formed in the radial direction of the groove-shaped water channel 9-1, and the two guide holes 9-2 are communicated with the radial water channel.
In the embodiment, the sealing bush 4 is fixedly sleeved on the cutting spindle 1, the sealing shell is rotatably connected with the sealing bush 4 through the bearing 12, the rotary water sealing assembly sleeved on the sealing bush 4 is arranged in the sealing shell, and the radial water channel for conveying cooling water into the axial water channel 1-1 arranged in the cutting spindle 1 is arranged in the sealing shell.
In this embodiment, the seal housing includes a first seal housing section 6 and a second seal housing section 7, and the seal housing adopts a split structure, so that the installation, replacement and maintenance of the rotary water seal assembly are facilitated, and the use effect is good.
In this embodiment, the rotating water seal assembly includes two rotating water seals 10 and a flow guide ring 9, the two rotating water seals 10 and the flow guide ring 9 are both sleeved on the seal bushing 4, and the flow guide ring 9 is located between the two rotating water seals 10, and since the flow guide ring 9 is provided with a groove-shaped water channel 9-1, two flow guide holes 9-2 are provided in the radial direction of the groove-shaped water channel 9-1, and the two flow guide holes 9-2 are both communicated with the radial water channel, the flow guide ring 9 can guide the inner spray high-pressure water entering the inside of the seal housing into the radial water channel, and the two rotating water seals 10 can prevent the inner spray high-pressure water in the groove-shaped water channel 9-1 from entering the lubrication cavity of the bearing 12, so as to avoid the formation of oil-water mixture in the lubrication cavity of the bearing 12, and ensure the lubrication performance of the bearing 12, the service life of the bearing 12 and the inner spray sealing device is prolonged.
As shown in fig. 1 to 4, in this embodiment, the radial water channel includes a first section of radial water channel 16-1 opened on the first seal housing section 6, a second section of radial water channel 16-2 opened on the seal bushing 4, and a third section of radial water channel 16-3 opened on the cutting spindle 1, which are communicated with each other, and an inlet end of the first section of radial water channel 16-1 and an inlet port 2-1 opened on an upper end of the cutting arm 2 are connected with the joint 3-2 through a hose 3-1.
As shown in fig. 2, in this embodiment, the sealing bush 4 is fixedly connected to the cutting spindle 1 through a flat key 14, and a shaft retainer ring 15 for limiting an axial position of the flat key 14 and an axial position of the sealing bush 4 is sleeved on the cutting spindle 1.
As shown in fig. 3, in this embodiment, the outer circular surface of the sealing bush 4 is composed of a first small-diameter shaft section 4-2, a large-diameter shaft section 4-1, and a second small-diameter shaft section 4-3 which are sequentially fixed end to end and in a step shape, the first small-diameter shaft section 4-2 and the second small-diameter shaft section 4-3 have the same diameter, and the inner circular surface of the sealing bush 4 is provided with a key groove 4-5 and a plurality of sealing gasket installation grooves 4-4.
As shown in fig. 1 and 2, in this embodiment, the number of the bearings 12 is two, two of the bearings 12 are respectively sleeved on the first small diameter shaft section 4-2 and the second small diameter shaft section 4-3, and bearing end covers 13 are respectively installed on the end face of the first seal housing section 6 and the end face of the second seal housing section 7.
As shown in fig. 1, 2, 4 and 5, in the present exemplary embodiment, the first seal housing section 6 is fixedly connected to the second seal housing section 7 by axially arranged fastening bolts 8, the central through hole of the first sealing shell section 6 comprises a first bearing mounting hole section 6-1, a first bearing lubricating cavity hole section 6-2, a first sealing bush mounting hole section 6-3, a transition hole section 6-4 and a rotary water sealing component mounting hole section 6-5 which are sequentially communicated, the central through hole of the second seal shell section 7 comprises a second bearing mounting hole section 7-1, a second bearing lubrication cavity hole section 7-2 and a second seal bushing mounting hole section 7-3 which are sequentially communicated, the first sealing bush mounting hole section 6-3 and the second sealing bush mounting hole section 7-3 are matched with the large-diameter shaft section 4-1.
In practical use, a clamping ring 7-6 is arranged at one end, far away from the second bearing mounting hole section 7-1, of the second sealing shell section 7, the outer circular surface of the clamping ring 7-6 is matched with the rotating water sealing assembly mounting hole section 6-5, the diameter of a central hole of the clamping ring 7-6 is equal to that of the second sealing bush mounting hole section 7-3, and the clamping ring 7-6 and the second sealing shell section 7 are integrally formed.
When the two rotary water seals 10 and the deflector ring 9 are installed in the rotary water seal assembly installation hole section 6-5, a gasket 11 needs to be installed on one side of the rotary water seal 10 far away from the deflector ring 9, and the gasket 11 can be used for adjusting the gaps between the two rotary water seals 10 and the first sealing shell section 6 and the second sealing shell section 7 respectively, so that the installation reliability of the two rotary water seals 10 in the axial direction of the sealing bush 4 is ensured, and the rotary water seals 10 are prevented from displacing in the axial direction of the sealing bush 4.
In this embodiment, the first seal housing section 6 is provided with a first grease injection channel 6-6 in the radial direction, the first grease injection channel 6-6 is communicated with the first bearing lubrication cavity section 6-2, a second grease injection channel 7-4 is arranged in the radial direction of the second seal housing section 7, the second lubricating grease injection channel 7-4 is communicated with the second bearing lubricating cavity section 7-2, a first water leakage hole 6-7 is arranged in the radial direction of the first bearing lubrication cavity section 6-2, a second water leakage hole 7-5 is arranged in the radial direction of the second bearing lubricating cavity section 7-2, the inlet end of the first grease injection passage 6-6 and the inlet end of the second grease injection passage 7-4 are both connected with a grease nipple 17 by screw threads.
As shown in fig. 1, in this embodiment, a water outlet 2-2 is formed at the bottom end of the cutting arm 2, an inspection opening 2-3 is formed at the upper end of the cutting arm 2, and a cover plate 18 for covering the inspection opening 2-3 is mounted on the cutting arm 2.
In this embodiment, a first water leakage hole 6-7 is formed in the radial direction of the first bearing lubrication cavity section 6-2, and a second water leakage hole 7-5 is formed in the radial direction of the second bearing lubrication cavity section 7-2, so that: when the inner spray sealing device is worn badly due to long-term use, poor water quality of inner spray high-pressure water or incapability of maintenance, the inner spray high-pressure water can flow out through the first water leakage holes 6-7 and the second water leakage holes 7-5 and is discharged from the cutting arm 1 through the water drainage holes 2-2, and the inner spray high-pressure water is prevented from being remained in the cutting arm 1.
In this embodiment, the inspection ports 2-3 are formed in the upper end of the cutting arm 2, and the cover plate 18 for covering the inspection ports 2-3 is mounted on the cutting arm 2, so that in practical use, an operator can open the cover plate 18 to inspect and maintain the inner spray sealing device inside the cutting arm 2, and meanwhile, the bearing 12 can be lubricated by grease, and the bearing lubricating device is convenient to operate and good in using effect.
When the internal spraying type water-saving cutting head is actually used, internal spraying high-pressure water flows from the water inlet 2-1, passes through the hose 3-1 and the connector 3-2, sequentially passes through the first section of radial water channel 16-1, the second section of radial water channel 16-2 and the third section of radial water channel 16-3 until flowing into the axial water channel 1-1, then flows through the axial water channel 1-1 to enter the built-in water cavity of the cutting head, and is sprayed out from the nozzle of the cutting head, so that dust generated in the tunneling process of the cantilever type tunneling machine can be reduced, and the purpose of cooling cutting teeth can be achieved.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (7)
1. The utility model provides an interior spraying sealing device of cantilever type entry driving machine which characterized in that: comprises a sealing bush (4) fixedly sleeved on a cutting spindle (1), a sealing shell rotationally connected with the sealing bush (4) through a bearing (12), a rotary water seal assembly sleeved on the sealing bush (4) and clamped in the sealing shell, and a radial water channel used for conveying cooling water to an axial water channel (1-1) arranged in the cutting spindle (1), wherein a plurality of sealing gaskets (5) are arranged between the sealing bush (4) and the cutting spindle (1), the sealing shell comprises a first sealing shell section (6) and a second sealing shell section (7) fixedly connected with the first sealing shell section (6), the rotary water seal assembly comprises two rotary water seals (10) sleeved on the sealing bush (4) and a flow guide ring (9) sleeved on the sealing bush (4) and positioned between the two rotary water seals (10), the guide ring (9) is provided with a groove-shaped water channel (9-1), two guide holes (9-2) are formed in the radial direction of the groove-shaped water channel (9-1), and the two guide holes (9-2) are communicated with the radial water channel.
2. An inner spray sealing device of a boom-type roadheader according to claim 1, wherein: the radial water channel comprises a first section of radial water channel (16-1) which is communicated with the first seal shell section (6), a second section of radial water channel (16-2) which is arranged on the seal bush (4) and a third section of radial water channel (16-3) which is arranged on the cutting spindle (1), and the inlet end of the first section of radial water channel (16-1) is connected with the water inlet (2-1) which is arranged at the upper end of the cutting arm (2) through a hose (3-1) and a joint (3-2).
3. An inner spray sealing device of a boom-type roadheader according to claim 1, wherein: the cutting tool is characterized in that the sealing bush (4) is fixedly connected with the cutting spindle (1) through a flat key (14), and a shaft retaining ring (15) used for limiting the axial position of the flat key (14) and the axial position of the sealing bush (4) is sleeved on the cutting spindle (1).
4. An inner spray sealing device of a boom-type roadheader according to claim 1, wherein: the outer circular surface of the sealing bush (4) is composed of a first small-diameter shaft section (4-2), a large-diameter shaft section (4-1) and a second small-diameter shaft section (4-3) which are sequentially fixed end to end and are in a step shape, the first small-diameter shaft section (4-2) and the second small-diameter shaft section (4-3) are identical in diameter, and a key groove (4-5) and a plurality of sealing washer installation grooves (4-4) are formed in the inner circular surface of the sealing bush (4).
5. An inner spray seal device of a boom-type roadheader according to claim 4, wherein: the number of the bearings (12) is two, the two bearings (12) are respectively sleeved on the first small-diameter shaft section (4-2) and the second small-diameter shaft section (4-3), and bearing end covers (13) are respectively arranged on the end face of the first seal housing section (6) and the end face of the second seal housing section (7).
6. An inner spray seal device of a boom-type roadheader according to claim 5, wherein: the first seal housing section (6) and the second seal housing section (7) are fixedly connected by axially arranged fastening bolts (8), the central through hole of the first seal shell section (6) comprises a first bearing mounting hole section (6-1), a first bearing lubrication cavity section (6-2), a first seal bushing mounting hole section (6-3), a transition hole section (6-4) and a rotary water seal assembly mounting hole section (6-5) which are sequentially communicated, the central through hole of the second seal shell section (7) comprises a second bearing mounting hole section (7-1), a second bearing lubrication cavity hole section (7-2) and a second seal bushing mounting hole section (7-3) which are communicated in sequence, the first sealing bush mounting hole section (6-3) and the second sealing bush mounting hole section (7-3) are matched with the large-diameter shaft section (4-1).
7. An inner spray seal device of a boom-type roadheader according to claim 6, wherein: a first lubricating grease injection channel (6-6) is formed in the radial direction of the first seal housing section (6), the first lubricating grease injection channel (6-6) is communicated with the first bearing lubricating cavity section (6-2), a second lubricating grease injection channel (7-4) is formed in the radial direction of the second seal housing section (7), the second lubricating grease injection channel (7-4) is communicated with the second bearing lubricating cavity section (7-2), a first water leakage hole (6-7) is formed in the radial direction of the first bearing lubricating cavity section (6-2), a second water leakage hole (7-5) is formed in the radial direction of the second bearing lubricating cavity section (7-2), and the inlet end of the first lubricating grease injection channel (6-6) and the inlet end of the second lubricating grease injection channel (7-4) are in threaded connection with each other An oil injection nozzle (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921602267.2U CN210564520U (en) | 2019-09-24 | 2019-09-24 | Inner spray sealing device of cantilever type tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921602267.2U CN210564520U (en) | 2019-09-24 | 2019-09-24 | Inner spray sealing device of cantilever type tunneling machine |
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| Publication Number | Publication Date |
|---|---|
| CN210564520U true CN210564520U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921602267.2U Active CN210564520U (en) | 2019-09-24 | 2019-09-24 | Inner spray sealing device of cantilever type tunneling machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418008A (en) * | 2021-08-23 | 2021-09-21 | 三一重型装备有限公司 | Rotary water sealing structure, cutting arm and heading machine |
| CN114856559A (en) * | 2022-05-13 | 2022-08-05 | 中煤科工集团西安研究院有限公司 | Coal mine underground rapid plug-in high-pressure dynamic sealing rotary water feeder and use method |
| CN114876456A (en) * | 2022-05-13 | 2022-08-09 | 中煤科工集团西安研究院有限公司 | Underground coal mine sealed plug-in wired signal transmission rotary water feeder and use method |
-
2019
- 2019-09-24 CN CN201921602267.2U patent/CN210564520U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418008A (en) * | 2021-08-23 | 2021-09-21 | 三一重型装备有限公司 | Rotary water sealing structure, cutting arm and heading machine |
| CN114856559A (en) * | 2022-05-13 | 2022-08-05 | 中煤科工集团西安研究院有限公司 | Coal mine underground rapid plug-in high-pressure dynamic sealing rotary water feeder and use method |
| CN114876456A (en) * | 2022-05-13 | 2022-08-09 | 中煤科工集团西安研究院有限公司 | Underground coal mine sealed plug-in wired signal transmission rotary water feeder and use method |
| CN114876456B (en) * | 2022-05-13 | 2023-05-12 | 中煤科工集团西安研究院有限公司 | Underground coal mine sealing plug-in wired signal transmission rotary water feeder and use method thereof |
| CN114856559B (en) * | 2022-05-13 | 2023-05-16 | 中煤科工集团西安研究院有限公司 | Underground coal mine rapid-plugging high-pressure dynamic sealing rotary water feeder and use method thereof |
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